Twyer-iron.



J. KOLSTROM.

TWYBR IRON. APPLICATIONIILED JULY 19, 1909.

Patented June 14, 191D.

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JOHN KOLSTROM, OF RYDER, NORTH DAKOTA.

TVJYER-IRON.

To all whom t may concern:

Be it known that I, JOI-IN KoLsTRoM, a citizen of the United States, residing at Ryder, in the county of Ward and State of North Dakota, have invented certain new and useful Improvements in Twyer-Irons; and I do hereby declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to new and useful improvements in twyer irons adapted to be used in connection with blacksmiths forges, and the like.

The objects of my invention are to provide a means for conveying air under blast to a fire pot and means for controlling said current of air, an ash receiving device, and means for operating said device.

In the accompanying drawings Figure 1 represents a transverse longitudinal view of my invention. Fig. 2 represents a cross section vertical view of the same. Figs. 3 and 4 are the preferred form of the apertures in the top of the body portion for admitting air. Fig. 5 is a fragmentary view in longitudinal section showing an air supply pipe entering the body portion at an angle of forty-five degrees.

Similar parts are designated by the same reference characters throughout the several views.

In Fig. 1,1 is a hollow body portion preferably cylindrical in form and of any desired dimensions, the same having apertures or blast holes 13 in the top similar to those shown in Figs. 3 or 4, said body portion being connected to a suitable machine adapted to supply an air blast by means of a blast pipe entering the body portion at the opening 4 at an angle of forty-live degrees, so as to favor the force of the blast to the outer Specification of Letters Patent.

Application filed July 19, 1909.

Patented June 14, 1910. serial No. 508,326.

prevent a leakage of air, which would ordinarily escape through the connection of the rod 5 and the piston 2 when expanded by heat. Depending upon the body portion 1 and secured thereto by means of bolts 11 and 12, is an ash pan 10 adapted to receive ashes falling through apertures 13 into the body portion, thence into the pan. Coperating with said ash pan is a lid 14, which is pivoted at an angle of forty-ve degrees with a hinge 15 and readily opened upon said hinge as desired, by chain 16, but counterweight 17 0H a pivotal line of center retains the lid and the contents of the pan in its normal position. A fire pot 3, supported by any preferred structure, such as bricks, is attached to the body portion by means of bolts passing through lugs on the body portion and bolts thereon. Obviously the hollow body portion may be made any desired shape, the piston conforming with the shape thereof.

What I claim is 1. A hollow body portion having a piston slidably mounted therein and means to operate said piston, an opening in one end of said hollow body portion, means for supplying air pressure through said opening, an ash receptacle coperating with said body portion, a closure for said ash receptacle, said closure comprising a lid pivotally secured to said ash receptacle and a counterweight secured to said lid, whereby said lid is normally held in a closed position.

2. A twyer iron comprising a hollow body portion having a piston slidably mounted therein, means to operate said piston, an air receiving openin in the walls of said hollow body portion an at one end thereof, a pipe entering said opening substantially at an angle of forty-ve degrees, whereby the draft may be effectively directed to the outer portion of said hollow body portion, and an sh receiving receptacle and a closure there- 3. A hollow body portion having air discharging openings in the top thereof, a piston slidably mounted therein and means to move said piston laterally in said body portion, an opening in one end of said body portion, an air supplying pipe entering said opening at substantially an angle of fortyfive degrees, whereby the draft may be effectively directed to the outer end of said hol- 10W body portion, an ash receiving receptacle de ending from said body portion at a point Y 5 adJacent the closed end thereof, a closure for said ash receptacle and a means to hold said closure normally in a closed position.

In testimony whereof I have signed my name to this specification in the presence of tWo subscribing Witnesses.

JOHN KOLSTROM.

Witnesses:

CARL TAINTER, OLE JOHNSON. 

